Improvement in hoop-jlocks for casks



THANVEY...

1 Hoor LOCK FoRcAsKs'. v No.. 43.494. PatentedJulyflZf1864.

UNITED ST'A'rirsl PATENT, OFFICE.

THOMAS HANVEY, OF ELMA, NEW YORK.

speifieanen forming part of Letters ramt No. 43,494, dated July 12, 1864.

.Tb/all whom it may concern,.- J Be it known that I, 'THOMAS HANVEY, of the townof Elma, in the county 'of Erie anda; State of New York, have invented a newand Improved Malleable Iron Lock or Fastening for Wooden rHoopsl for Barrels and other Casks; and I do hereby declare that the fol-.- lowing is a fullV and exact-description thereof,

reference being made to the accompanying drawings, making a part of this specification,

in whihy Figure I is a cross-section, taken through the lock, hoop', and wedge as combined.- Fig.

II is =an isometrical perspective of the lock separate from the hoop, Fig. III shows the lock, hoop, and wedges as combined in actual Letters of likename and kind refer to like parts in each of the figures.

The nature of this invention relates to making a hoop-lock of cast malleable iron for wood hoops, for barrels and other casks'.

A' represents my improved hoop-lock,which is made of cast mall'eableized iron. For an or dinary iiourfbarrel hoop, the casting is nearly equal in lengthand breadth, being about'one inch and a quarterin length and, breadth, as. represented in the drawings. The principle is applicable to any other required size. There is an open mortise made lengthwise` through the lock-casting, through which mortise'the two ends ofthe hoop'pass, as shown' in Fig; III. AThis mortise is made aneighth or siiteenth of aninch wider (more or less)A at the top than at the bottom, so that the two ends of a cut hoop will exactly fit and ll the niortise when'the wedges are driven in, as shown in Fig. I. vThe exterior form of the lock-casting has va curvature corresponding to the circle of the barrel or Cask on which itis to loeV u sed, as shown in Figs. II and III, so that it will iit nicely thereon. The mortise also hasj a Acorreslgionding curvature, s o that' the strain upon the hoop will be a straight pull with the grainof the wood (and not a lbite of the lock across the grain,)fthereby securing the' full strength of the timber. `The internal di mensions of the mortise in one direction is equal to the width of the hoop,.and in the other direction a little more than twice'the thickness of the' hoop, so as to admit a thin wedge under the end of the hoop.A

The hoop is represented at B It is what is called a cuthoopU-i. e., it is cut by machinery from a suitable block or bolt of tim` ber, instead of being splitfandgin this manner may be made` very rapidly and very cheaply. In the process of cutting, the hoop is given a slight transverse taper, as shown in Fig. I, in order to make the lower edge of the hoop a larger circle than the upper` ige, and hence will exactly fit thetaperofjjtiie barrel and fill the mortise through the lock. These hoops may be cut three or four (or moreor less) inches wide, and Vwhen such'fS-wide hoops are used, the lock or clasp A is correspondingly enlarged, so that one wide hoop will Vbe as strong as three narrow hoops; and hence a lesser number of .hoops in such case is re quired to hold the barrel, and thereby a great saving o f time and expense in the manufacture of barrels is effected. These locksorclasps may be manufactured of any required size upon this principle, in order to correspond with the width of the hoop. and the size of the barrel or cask on 'which they are to be used. jlhis `lock makes a remarkably secure fastening for the hoop. It insures the entire strength of the timber within the lock, so that the hoop will. beV as stronger stronger atthe lockthan at any other part. l The hoop is .not in any sense strained or weakened in the lock, and no part of itis cut away,'and there is no strain upon it crosswise of the grain.` v

C represents a Wedge or wedges',`which are driven in under the ends of the hoop and enter the lock, and so leizpand the ends of the hoop as to render it impossible lto withdraw it from the lock while the wedges remain in. The cooper will measure the length of hoop required and set the lock on the hoop accordingly and drive in the wedges. The hoop when thus made and locked may be driven.

upon the barrel with. great ease, force, and safety. l y

What I claim as myinvention,and desire to secure by Letters Patent, is-

The above-described hoop-lock,-consisting of the lock-casting A, wooden'hoop B, and wedge 0,'when constructed substantially as and for the purposes set forth.

THOS. HANVEY.

Witnesses: Y

E. B.FoRBUsH, GEO. W. WALLACE,

lVI. B. MOORE; 

